Plate Tectonics

Oceanic crust is primarily made of what substance?

The Great Rift Valley in Africa is an example of what type of boundary?

My plates move away from each other usually at a rift valley or a mid-ocean ridge. Who am I?

Sudden movement of Earth's plates are caused by...

Evidences of sea floor spreading...

Continental Drift theory was developed by...

Continental crust is more or less dense than oceanic crust?

The evidences of Continental Drift are...

I am the layer where convection currents take place. Who am I?

I create mountains, volcanoes, and trenches; my plates move toward each other. Who am I?

An object at rest wants to stay at rest and an object in motion wants to stay in motion.

Sea Floor Spreading was developed by...

I am a solid metal and releases heat through radioactive decay. What am I?

In the picture, what is number 3?

What causes plates to move?

I am at a convergent boundary, one more dense plate slips under the less dense plate. Who am I?

The moon is in line and in the middle of the Earth and Sun. Which lunar phase is this?

My plates move slide next to each other and I produce a lot of earthquakes. Who am I?

Oceanic crust is more or less dense than continental crust?

What is the formula to calculate force?

I am the layer that is liquid metal. Who am I?

Sea Floor Spreading occurs because...

San Andreas Fault is an example of what type of plate boundary?

Continental crust is mostly made of what substance?